Controllable synthesis of three-dimensional hierarchical porous ZnO film with mesoporous nanowalls

被引：15

作者：

Yan, Xiaoyan ^{[1
]}

Tong, Xili ^{[2
]}

Wang, Jian ^{[1
]}

Gong, Changwei ^{[1
]}

Zhang, Mingang ^{[1
]}

Liang, Liping ^{[1
]}

机构：

[1] Taiyuan Univ Sci & Technol, Inst Mat Sci & Engn, Taiyuan 030024, Peoples R China

[2] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China

来源：

MATERIALS LETTERS | 2013年 / 92卷

关键词：

Zinc oxide; Hydrothermal synthesis; Porous materials; Thin films; GROWTH; LAYER; NANORODS; ARRAYS;

D O I：

10.1016/j.matlet.2012.10.079

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Controllable synthesis of hierarchical porous semiconductors films is highly desirable for high-performance electronics and optical devices. Herein, we report a facile hydrothermal synthesis method to fabricate three-dimensional hierarchical porous ZnO film on conductive substrate. The obtained ZnO film exhibits a net-like porous architecture with hierarchical porosity from mesoporosity to macroporosity. Interestingly, the ZnO film possesses mesoporous walls ranging from 2-5 nm. Besides, the as-prepared ZnO film also shows a high specific surface area of similar to 237 m(2) g(-1) and a noticeable porosity up to 76%. A growth mechanism is also proposed. The developed strategy can be extended to the fabrication of other hierarchical porous metal oxides for applications in solar cells, gas sensors and thin-film batteries. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：165 / 168

页数：4

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